I specialize in the history of contemporary Germany with interests in transnational histories of sexuality, social memory, and visual culture. I have written books and articles on sexual subcultures in the aftermath of WWII, co-edited two books on same-sex sexuality in general, and another on the history of documentary photography. I’m particularly interested in how history is conceptualized and written, including how categories are imagined and put to use in our analysis of past people, sentiments, and events. I’ve explored this in relation to how photography shapes historical subjectivity in an article in the American Historical Review and in the introduction to the special issue I edited for the journal German History on queering as a methodological framework. I’m currently collaborating on a monograph on social media and vernacular Holocaust memory. In addition to this, I am conducting research on “Photography and the Sexual Revolution” in a transnational frame. I am also working on another project on audioguides to the libraries of the first generation of LGBTQI scholars to make gay and lesbian, and now trans studies a formalized program of study at the university. This project, a collaboration with Edinburgh-based Canadian artist Benny Nemerofsky Ramsay, explores soundscapes for how they create opportunities for empathic listening.